US Bridges

Estrella Parkway over Wash

Fair

Maricopa County, Arizona · Spring Drive · Structure no. 07591

Built
1988
37 years old
Condition
Fair
inspected April 2021
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
19,759
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Estrella Parkway over Wash is a concrete continuous culvert carrying Estrella Parkway over Wash in Maricopa County, Arizona. It was built in 1988, so it is 37 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 19,759 vehicles a day, roughly 5% of them trucks, projected to reach 19,769 by 2040. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesEstrella Parkway
CrossesWash
LocationSpring Drive
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.3493, -112.4281
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,759 (2020)
Projected traffic19,769 by 2040
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Estrella Parkway over Wash built?

It was built in 1988, making it 37 years old in 2025.

What condition is Estrella Parkway over Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2021.

How much traffic does Estrella Parkway over Wash carry?

About 19,759 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Estrella Parkway over Wash?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m).

Who owns Estrella Parkway over Wash?

It is owned by the City or Municipal Highway Agency.